NGHIÊN CỨU TÍNH CHẤT ĐIỆN HÓA CỦA NANOCOMPOZIT MnO2/CNT ỨNG DỤNG TRONG SIÊU TỤ

Tóm tắt

In this work, MnO2/carbon nanotube (CNT) nanocomposite is synthesized by chemical deposition
method. Electrochemical properties of the synthesized material was studied using cyclic voltammetry
(CV) in 1 M Na2SO4 aqueous electrolyte that showed a high specific capacitance of 236.64 Fg-1. In
addition, the synthesized nanomaterial showed a good reversibility and cycling stability. After 500 cycle
tests, material maintain 78.14% of its initial specific capacitance. The MnO2/CNT nanocomposite makes
it promising as an electrode material for supercapacitors.
Keywords: supercapacitor, manganese dioxide, carbon nanotube